If you mean is there an alternative to Windows then it depends what you want to do.

Linux is excellent but with it comes the problem that users wont know what they're working with. Linux itself has several different flavours and even if you go for one e.g. Ubuntu that changes faster than Windows does.

From a management perspective Windows is the easiest to centrally manage.

I think what he's asking is there a better alternative to the File and Settings Transfer Wizard from Windows, I actually find this great except it is a bit annoying if you complete it and then the new machine tells you it was completed with an earlier version of the wizard and it can't work.

I have only ever had to copy over the .nk2 file to bring up the address caching within Outlook, it seems to catch everything else, even offline folder settings.